Akademik

A varicose condition of the external hemorrhoidal veins causing painful swellings at the anus. SYN: piles. [G. haimorrhois, pl. haimorrhoides, veins likely to bleed, fr. haima, blood, + rhoia, a flow]

- cutaneous h. hyperplasia of the connective tissue in one or more of the normal radiating folds of the skin immediately surrounding the anus.

- external h. dilated veins forming tumors at the outer side of the external sphincter.

- internal h. dilated veins beneath the mucous membrane within the sphincter.